Home / 8,328.68-12,499.11-6,143.30

Finding the Fourth Proportional to 8,328.68, 12,499.11 and 6,143.30

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Solution

The fourth proportional to 8,328.68, 12,499.11 and 6,143.30 is: 9,219.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.68 : 12,499.11 = 6,143.30 : x
  2. Step 2: Convert to fraction form
    8,328.68/12,499.11 = 6,143.30/x
  3. Step 3: Cross multiply
    8,328.68x = 12,499.11 × 6,143.30
  4. Step 4: Simplify right side
    8,328.68x = 76,785,782.46
  5. Step 5: Solve for x
    x = 76,785,782.46/8,328.68
  6. Step 6: Final answer
    x = 9,219.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.